/usr/share/pyshared/boto/manage/cmdshell.py is in python-boto 2.2.2-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | # Copyright (c) 2006-2009 Mitch Garnaat http://garnaat.org/
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
from boto.mashups.interactive import interactive_shell
import boto
import os
import time
import shutil
import StringIO
import paramiko
import socket
import subprocess
class SSHClient(object):
def __init__(self, server,
host_key_file='~/.ssh/known_hosts',
uname='root', ssh_pwd=None):
self.server = server
self.host_key_file = host_key_file
self.uname = uname
self._pkey = paramiko.RSAKey.from_private_key_file(server.ssh_key_file,
password=ssh_pwd)
self._ssh_client = paramiko.SSHClient()
self._ssh_client.load_system_host_keys()
self._ssh_client.load_host_keys(os.path.expanduser(host_key_file))
self._ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
self.connect()
def connect(self):
retry = 0
while retry < 5:
try:
self._ssh_client.connect(self.server.hostname,
username=self.uname,
pkey=self._pkey)
return
except socket.error, (value,message):
if value == 61 or value == 111:
print 'SSH Connection refused, will retry in 5 seconds'
time.sleep(5)
retry += 1
else:
raise
except paramiko.BadHostKeyException:
print "%s has an entry in ~/.ssh/known_hosts and it doesn't match" % self.server.hostname
print 'Edit that file to remove the entry and then hit return to try again'
raw_input('Hit Enter when ready')
retry += 1
except EOFError:
print 'Unexpected Error from SSH Connection, retry in 5 seconds'
time.sleep(5)
retry += 1
print 'Could not establish SSH connection'
def open_sftp(self):
return self._ssh_client.open_sftp()
def get_file(self, src, dst):
sftp_client = self.open_sftp()
sftp_client.get(src, dst)
def put_file(self, src, dst):
sftp_client = self.open_sftp()
sftp_client.put(src, dst)
def open(self, filename, mode='r', bufsize=-1):
"""
Open a file on the remote system and return a file-like object.
"""
sftp_client = self.open_sftp()
return sftp_client.open(filename, mode, bufsize)
def listdir(self, path):
sftp_client = self.open_sftp()
return sftp_client.listdir(path)
def isdir(self, path):
status = self.run('[ -d %s ] || echo "FALSE"' % path)
if status[1].startswith('FALSE'):
return 0
return 1
def exists(self, path):
status = self.run('[ -a %s ] || echo "FALSE"' % path)
if status[1].startswith('FALSE'):
return 0
return 1
def shell(self):
"""
Start an interactive shell session on the remote host.
"""
channel = self._ssh_client.invoke_shell()
interactive_shell(channel)
def run(self, command):
"""
Execute a command on the remote host. Return a tuple containing
an integer status and a two strings, the first containing stdout
and the second containing stderr from the command.
"""
boto.log.debug('running:%s on %s' % (command, self.server.instance_id))
status = 0
try:
t = self._ssh_client.exec_command(command)
except paramiko.SSHException:
status = 1
std_out = t[1].read()
std_err = t[2].read()
t[0].close()
t[1].close()
t[2].close()
boto.log.debug('stdout: %s' % std_out)
boto.log.debug('stderr: %s' % std_err)
return (status, std_out, std_err)
def run_pty(self, command):
"""
Execute a command on the remote host with a pseudo-terminal.
Returns a string containing the output of the command.
"""
boto.log.debug('running:%s on %s' % (command, self.server.instance_id))
channel = self._ssh_client.get_transport().open_session()
channel.get_pty()
channel.exec_command(command)
return channel.recv(1024)
def close(self):
transport = self._ssh_client.get_transport()
transport.close()
self.server.reset_cmdshell()
class LocalClient(object):
def __init__(self, server, host_key_file=None, uname='root'):
self.server = server
self.host_key_file = host_key_file
self.uname = uname
def get_file(self, src, dst):
shutil.copyfile(src, dst)
def put_file(self, src, dst):
shutil.copyfile(src, dst)
def listdir(self, path):
return os.listdir(path)
def isdir(self, path):
return os.path.isdir(path)
def exists(self, path):
return os.path.exists(path)
def shell(self):
raise NotImplementedError, 'shell not supported with LocalClient'
def run(self):
boto.log.info('running:%s' % self.command)
log_fp = StringIO.StringIO()
process = subprocess.Popen(self.command, shell=True, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
while process.poll() == None:
time.sleep(1)
t = process.communicate()
log_fp.write(t[0])
log_fp.write(t[1])
boto.log.info(log_fp.getvalue())
boto.log.info('output: %s' % log_fp.getvalue())
return (process.returncode, log_fp.getvalue())
def close(self):
pass
class FakeServer(object):
"""
A little class to fake out SSHClient (which is expecting a
:class`boto.manage.server.Server` instance. This allows us
to
"""
def __init__(self, instance, ssh_key_file):
self.instance = instance
self.ssh_key_file = ssh_key_file
self.hostname = instance.dns_name
self.instance_id = self.instance.id
def start(server):
instance_id = boto.config.get('Instance', 'instance-id', None)
if instance_id == server.instance_id:
return LocalClient(server)
else:
return SSHClient(server)
def sshclient_from_instance(instance, ssh_key_file,
host_key_file='~/.ssh/known_hosts',
user_name='root', ssh_pwd=None):
"""
Create and return an SSHClient object given an
instance object.
:type instance: :class`boto.ec2.instance.Instance` object
:param instance: The instance object.
:type ssh_key_file: str
:param ssh_key_file: A path to the private key file used
to log into instance.
:type host_key_file: str
:param host_key_file: A path to the known_hosts file used
by the SSH client.
Defaults to ~/.ssh/known_hosts
:type user_name: str
:param user_name: The username to use when logging into
the instance. Defaults to root.
:type ssh_pwd: str
:param ssh_pwd: The passphrase, if any, associated with
private key.
"""
s = FakeServer(instance, ssh_key_file)
return SSHClient(s, host_key_file, user_name, ssh_pwd)
|